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DevExtreme widgets can be localized by means of the Intl object. You need to link the devextreme-intl module, and DevExtreme dictionaries for desired locales (see the <head> tag of index.html). Using Angular, get all the needed components as imported modules instead (see app.component.ts). Then, set the current locale with the DevExpress.localization.locale method.

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<div id="data-grid-demo"> <dx-data-grid [dataSource]="payments" (onInitialized)="onInitialized($event)"> <dxi-column dataField="PaymentId" [caption]="formatMessage('Number')" [allowEditing]="false" width="100"></dxi-column> <dxi-column dataField="ContactName" [caption]="formatMessage('Contact')"> </dxi-column> <dxi-column dataField="CompanyName" [caption]="formatMessage('Company')"> </dxi-column> <dxi-column dataField="Amount" [caption]="formatMessage('Amount')" dataType="number" format="currency"> </dxi-column> <dxi-column dataField="PaymentDate" [caption]="formatMessage('PaymentDate')" dataType="date"> </dxi-column> <dxo-filter-row [visible]="true" [applyFilter]="auto"> </dxo-filter-row> <dxo-editing mode="popup" [allowUpdating]="true"> <dxo-popup [width]="700" [height]="345"> </dxo-popup> </dxo-editing> </dx-data-grid> <div class="options"> <div class="caption">Options</div> <div class="option"> <label for="selectInput">Language</label> <dx-select-box id="selectBox" [dataSource]="locales" displayExpr="Name" valueExpr="Value" [value]="locale" (onValueChanged)="changeLocale($event)" [inputAttr]="{id: 'selectInput'}"> </dx-select-box> </div> </div> </div>
import { NgModule, Component, enableProdMode } from '@angular/core'; import { BrowserModule } from '@angular/platform-browser'; import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { DxSelectBoxModule, DxDataGridModule } from 'devextreme-angular'; import { Locale, Payment, Service } from './app.service'; import { locale, loadMessages, formatMessage } from 'devextreme/localization'; import 'devextreme-intl'; import deMessages from 'npm:devextreme/localization/messages/de.json!json'; import ruMessages from 'npm:devextreme/localization/messages/ru.json!json'; if(!/localhost/.test(document.location.host)) { enableProdMode(); } @Component({ selector: 'demo-app', templateUrl: 'app/app.component.html', styleUrls: ['app/app.component.css'], providers: [Service] }) export class AppComponent { locale: string; locales: Locale[]; payments: Payment[]; formatMessage = formatMessage; constructor(private service: Service) { this.locale = this.getLocale(); this.payments = service.getPayments(); this.locales = service.getLocales(); this.initMessages(); locale(this.locale); } initMessages() { loadMessages(deMessages); loadMessages(ruMessages); loadMessages(this.service.getDictionary()); } changeLocale(data) { this.setLocale(data.value); parent.document.location.reload(); } getLocale() { var locale = sessionStorage.getItem("locale"); return locale != null ? locale : "en"; } setLocale(locale) { sessionStorage.setItem("locale", locale); } onInitialized(e) { e.component.columnOption("Amount", { editorOptions: { format: "currency", showClearButton: true } }); } } @NgModule({ imports: [ BrowserModule, DxSelectBoxModule, DxDataGridModule ], declarations: [AppComponent], bootstrap: [AppComponent] }) export class AppModule { } platformBrowserDynamic().bootstrapModule(AppModule);
::ng-deep .options { padding: 20px; background-color: rgba(191, 191, 191, 0.15); margin-top: 20px; } ::ng-deep .option { margin-top: 10px; } ::ng-deep .caption { font-size: 18px; font-weight: 500; } ::ng-deep .option > label { margin-right: 10px; } ::ng-deep .option > .dx-selectbox { display: inline-block; vertical-align: middle; }
import { Injectable } from '@angular/core'; export class Locale { Name: string; Value: string; } let locales: Locale[] = [{ "Name": "English", "Value": "en" }, { "Name": "Deutsch", "Value": "de" }, { "Name": "Русский", "Value": "ru" }]; export class Payment { PaymentId: number; ContactName: string; CompanyName: string; Amount: number; PaymentDate: string; } let payments: Payment[] = [{ "PaymentId": 1, "ContactName": "Nancy Davolio", "CompanyName": "Premier Buy", "Amount": 1740, "PaymentDate": "2013/01/06" }, { "PaymentId": 2, "ContactName": "Andrew Fuller", "CompanyName": "ElectrixMax", "Amount": 850, "PaymentDate": "2013/01/13" }, { "PaymentId": 3, "ContactName": "Janet Leverling", "CompanyName": "Video Emporium", "Amount": 2235, "PaymentDate": "2013/01/07" }, { "PaymentId": 4, "ContactName": "Margaret Peacock", "CompanyName": "Screen Shop", "Amount": 1965, "PaymentDate": "2013/01/03" }, { "PaymentId": 5, "ContactName": "Steven Buchanan", "CompanyName": "Braeburn", "Amount": 880, "PaymentDate": "2013/01/10" }, { "PaymentId": 6, "ContactName": "Michael Suyama", "CompanyName": "PriceCo", "Amount": 5260, "PaymentDate": "2013/01/17" }, { "PaymentId": 7, "ContactName": "Robert King", "CompanyName": "Ultimate Gadget", "Amount": 2790, "PaymentDate": "2013/01/21" }, { "PaymentId": 8, "ContactName": "Laura Callahan", "CompanyName": "EZ Stop", "Amount": 3140, "PaymentDate": "2013/01/01" }, { "PaymentId": 9, "ContactName": "Anne Dodsworth", "CompanyName": "Clicker", "Amount": 6175, "PaymentDate": "2013/01/24" }, { "PaymentId": 10, "ContactName": "Clark Morgan", "CompanyName": "Store of America", "Amount": 4575, "PaymentDate": "2013/01/11" }]; export class PaymentView { Number: string; Contact: string; Company: string; Amount: string; PaymentDate: string; } export class Dictionary { [key: string]: PaymentView; } let dictionary: Dictionary = { "en": { "Number": "Number", "Contact": "Contact", "Company": "Company", "Amount": "Amount", "PaymentDate": "Payment Date" }, "de": { "Number": "Nummer", "Contact": "Ansprechpartner", "Company": "Firma", "Amount": "Betrag", "PaymentDate": "Zahlungsdatum" }, "ru": { "Number": "Номер", "Contact": "Имя", "Company": "Организация", "Amount": "Сумма", "PaymentDate": "Дата оплаты" } }; @Injectable() export class Service { getPayments() { return payments; } getLocales() { return locales; } getDictionary() { return dictionary; } }
// In real applications, you should not transpile code in the browser. You can see how to create your own application with Angular and DevExtreme here: // https://github.com/DevExpress/devextreme-angular/blob/master/README.md System.config({ transpiler: 'ts', typescriptOptions: { module: "commonjs", emitDecoratorMetadata: true, experimentalDecorators: true }, meta: { 'typescript': { "exports": "ts" } }, paths: { 'npm:': 'https://unpkg.com/' }, map: { 'ts': 'npm:plugin-typescript@7.0.6/lib/plugin.js', 'typescript': 'npm:typescript@2.2.2/lib/typescript.js', '@angular/core': 'npm:@angular/core@5.1.2/bundles/core.umd.js', '@angular/common': 'npm:@angular/common@5.1.2/bundles/common.umd.js', '@angular/compiler': 'npm:@angular/compiler@5.1.2/bundles/compiler.umd.js', '@angular/platform-browser': 'npm:@angular/platform-browser@5.1.2/bundles/platform-browser.umd.js', '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic@5.1.2/bundles/platform-browser-dynamic.umd.js', '@angular/router': 'npm:@angular/router@5.1.2/bundles/router.umd.js', '@angular/forms': 'npm:@angular/forms@5.1.2/bundles/forms.umd.js', '@angular/common/http': 'npm:@angular/common@5.1.2/bundles/common-http.umd.js', 'tslib': 'npm:tslib/tslib.js', 'rxjs': 'npm:rxjs@5.3.1', 'devextreme': 'npm:devextreme@18.1', 'jszip': 'npm:jszip@3.1.3/dist/jszip.min.js', 'devextreme-angular': 'npm:devextreme-angular@18.1', 'devextreme-intl': 'npm:devextreme-intl/dist', 'json': 'npm:systemjs-plugin-json/json.js' }, packages: { 'app': { main: './app.component.ts', defaultExtension: 'ts' }, 'devextreme': { defaultExtension: 'js' }, 'devextreme-angular': { main: 'index.js', defaultExtension: 'js' }, 'devextreme-intl': { main: 'devextreme-intl.min.js', defaultExtension: 'js' } } });
<!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>DevExtreme Demo</title> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/18.1.6/css/dx.common.css" /> <link rel="dx-theme" data-theme="generic.light" href="https://cdn3.devexpress.com/jslib/18.1.6/css/dx.light.css" /> <script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script> <script src="https://unpkg.com/zone.js@0.6.25/dist/zone.js"></script> <script src="https://unpkg.com/reflect-metadata@0.1.3/Reflect.js"></script> <script src="https://unpkg.com/systemjs@0.21.3/dist/system.js"></script> <script src="https://cdn.polyfill.io/v2/polyfill.min.js?features=Intl.~locale.en,Intl.~locale.de,Intl.~locale.ru"></script> <script src="config.js"></script> <script> System.import('app').catch(console.error.bind(console)); </script> </head> <body class="dx-viewport"> <div class="demo-container"> <demo-app>Loading...</demo-app> </div> </body> </html>